City: unknown
Region: unknown
Country: China
Internet Service Provider: unknown
Hostname: unknown
Organization: unknown
Usage Type: unknown
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to '42.244.0.0 - 42.247.255.255'
% Abuse contact for '42.244.0.0 - 42.247.255.255' is 'abuse@cernet.edu.cn'
inetnum: 42.244.0.0 - 42.247.255.255
netname: NJR-CERNET
descr: China Education and Research Network
descr: Nanjing Regional Network
country: CN
admin-c: CER-AP
tech-c: CER-AP
abuse-c: AC1685-AP
status: ALLOCATED PORTABLE
remarks: origin AS4538
remarks: confederation
remarks: --------------------------------------------------------
remarks: To report network abuse, please contact mnt-irt
remarks: For troubleshooting, please contact tech-c and admin-c
remarks: Report invalid contact via www.apnic.net/invalidcontact
remarks: --------------------------------------------------------
mnt-by: APNIC-HM
mnt-lower: MAINT-CERNET-AP
mnt-routes: MAINT-CERNET-AP
mnt-irt: IRT-CERNET-AP
last-modified: 2020-09-03T09:16:28Z
source: APNIC
irt: IRT-CERNET-AP
address: Network Center,
address: FIT-3-220, Tsinghua Univ
address: Beijing 100084, China
phone: +86-10-62784301
fax-no: +86-10-62785933
e-mail: abuse@cernet.edu.cn
abuse-mailbox: abuse@cernet.edu.cn
admin-c: CER-AP
tech-c: CER-AP
auth: # Filtered
remarks: timezone GMT+8
remarks: abuse@cernet.edu.cn was validated on 2026-03-05
mnt-by: MAINT-CERNET-AP
last-modified: 2026-03-05T06:39:56Z
source: APNIC
role: ABUSE CERNETAP
country: ZZ
address: Network Center,
address: FIT-3-220, Tsinghua Univ
address: Beijing 100084, China
phone: +86-10-62784301
e-mail: abuse@cernet.edu.cn
admin-c: CER-AP
tech-c: CER-AP
nic-hdl: AC1685-AP
remarks: Generated from irt object IRT-CERNET-AP
remarks: abuse@cernet.edu.cn was validated on 2026-03-05
abuse-mailbox: abuse@cernet.edu.cn
mnt-by: APNIC-ABUSE
last-modified: 2026-03-05T06:40:20Z
source: APNIC
role: CERNET Helpdesk
address: CERNET Center
address: Beijing 100084, China
country: CN
phone: +86-10-6278-4049
fax-no: +86-10-6278-5933
e-mail: helpdesk@cernet.edu.cn
remarks: abuse@cernet.edu.cn
admin-c: XL1-CN
tech-c: SZ2-AP
nic-hdl: CER-AP
mnt-by: MAINT-CERNET-AP
last-modified: 2020-09-03T09:14:12Z
source: APNIC
% Information related to '42.246.0.0/15AS4538'
route: 42.246.0.0/15
descr: CERNET
origin: AS4538
mnt-by: MAINT-CERNET-AP
last-modified: 2017-03-14T04:00:08Z
source: APNIC
% This query was served by the APNIC Whois Service version 1.88.48 (WHOIS-AU5); <<>> DiG 9.10.3-P4-Ubuntu <<>> 42.247.111.130
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 38234
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUESTION SECTION:
;42.247.111.130. IN A
;; AUTHORITY SECTION:
. 30 IN SOA a.root-servers.net. nstld.verisign-grs.com. 2026050700 1800 900 604800 86400
;; Query time: 29 msec
;; SERVER: 183.60.83.19#53(183.60.83.19)
;; WHEN: Thu May 07 16:58:07 CST 2026
;; MSG SIZE rcvd: 107Host 130.111.247.42.in-addr.arpa. not found: 3(NXDOMAIN)Server: 183.60.83.19
Address: 183.60.83.19#53
** server can't find 130.111.247.42.in-addr.arpa: NXDOMAIN| IP | Type | Details | Datetime |
|---|---|---|---|
| 159.203.219.38 | attackbots | Invalid user ts3 from 159.203.219.38 port 46988 |
2020-09-24 20:54:12 |
| 45.142.120.74 | attack | Sep 24 14:28:41 srv01 postfix/smtpd\[24767\]: warning: unknown\[45.142.120.74\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Sep 24 14:28:51 srv01 postfix/smtpd\[23910\]: warning: unknown\[45.142.120.74\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Sep 24 14:29:04 srv01 postfix/smtpd\[24725\]: warning: unknown\[45.142.120.74\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Sep 24 14:29:07 srv01 postfix/smtpd\[24814\]: warning: unknown\[45.142.120.74\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 Sep 24 14:29:07 srv01 postfix/smtpd\[24815\]: warning: unknown\[45.142.120.74\]: SASL LOGIN authentication failed: UGFzc3dvcmQ6 ... |
2020-09-24 20:45:06 |
| 202.29.51.61 | attackbots | Invalid user sentry from 202.29.51.61 port 49059 |
2020-09-24 20:27:22 |
| 190.207.170.31 | attackspam | Sep 23 20:05:36 root sshd[25161]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=190-207-170-31.dyn.dsl.cantv.net user=root Sep 23 20:05:38 root sshd[25161]: Failed password for root from 190.207.170.31 port 18577 ssh2 ... |
2020-09-24 20:36:32 |
| 5.135.224.152 | attack | Invalid user jiaxing from 5.135.224.152 port 44174 |
2020-09-24 20:40:14 |
| 58.19.14.13 | attackspam | Brute forcing email accounts |
2020-09-24 20:44:06 |
| 123.10.235.47 | attackspambots | Listed on zen-spamhaus also abuseat.org / proto=6 . srcport=62287 . dstport=23 . (2903) |
2020-09-24 20:28:01 |
| 157.245.248.70 | attackspam | Invalid user infa from 157.245.248.70 port 38368 |
2020-09-24 20:49:44 |
| 58.153.153.63 | attackspam | Sep 23 20:05:42 root sshd[25181]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=n058153153063.netvigator.com user=root Sep 23 20:05:45 root sshd[25181]: Failed password for root from 58.153.153.63 port 40169 ssh2 ... |
2020-09-24 20:25:29 |
| 189.251.73.140 | attack | 1600880744 - 09/23/2020 19:05:44 Host: 189.251.73.140/189.251.73.140 Port: 445 TCP Blocked |
2020-09-24 20:28:23 |
| 91.215.20.102 | attackbots | Invalid user data from 91.215.20.102 port 37458 |
2020-09-24 20:38:21 |
| 81.163.15.138 | attackspambots | Sep 23 18:50:10 mail.srvfarm.net postfix/smtpd[194163]: warning: 81-163-15-138.net.lasnet.pl[81.163.15.138]: SASL PLAIN authentication failed: Sep 23 18:50:10 mail.srvfarm.net postfix/smtpd[194163]: lost connection after AUTH from 81-163-15-138.net.lasnet.pl[81.163.15.138] Sep 23 18:55:39 mail.srvfarm.net postfix/smtpd[198463]: warning: 81-163-15-138.net.lasnet.pl[81.163.15.138]: SASL PLAIN authentication failed: Sep 23 18:55:39 mail.srvfarm.net postfix/smtpd[198463]: lost connection after AUTH from 81-163-15-138.net.lasnet.pl[81.163.15.138] Sep 23 18:59:08 mail.srvfarm.net postfix/smtps/smtpd[199015]: warning: 81-163-15-138.net.lasnet.pl[81.163.15.138]: SASL PLAIN authentication failed: |
2020-09-24 20:43:39 |
| 51.178.86.97 | attackspambots | $f2bV_matches |
2020-09-24 20:17:58 |
| 181.102.110.252 | attackspam | 1600880755 - 09/23/2020 19:05:55 Host: 181.102.110.252/181.102.110.252 Port: 445 TCP Blocked |
2020-09-24 20:15:37 |
| 3.129.15.178 | attackbotsspam | 20 attempts against mh-ssh on star |
2020-09-24 20:56:00 |